Commits
ptaylor authored and Neal Richardson committed fbb781bcdd1
ARROW-8394: [JS] Upgrade to TypeScript 4.0.2, fix typings for TS 3.9+ * Upgrades to TypeScript 4.0.2 * Fixes typings for TypeScript versions 3.9+ Closes https://issues.apache.org/jira/browse/ARROW-8394 Closes #8216 from trxcllnt/fix/typescript-3.9-errors Authored-by: ptaylor <paul.e.taylor@me.com> Signed-off-by: Neal Richardson <neal.p.richardson@gmail.com>